Characterization of PVA/glutaraldehyde hydrogels obtained using Central Composite Rotatable Design (CCRD)

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dc.contributor.authorMorandim-Giannetti A.D.A.
dc.contributor.authorRubio S.R.
dc.contributor.authorNogueira R.F.
dc.contributor.authorOrtega F.D.S.
dc.contributor.authorMagalhaes Junior O.
dc.contributor.authorSchor P.
dc.contributor.authorBersanetti P.A.
dc.date.accessioned2019-08-20T00:12:02Z
dc.date.available2019-08-20T00:12:02Z
dc.date.issued2018
dc.description.abstract© 2017 Wiley Periodicals, Inc. Hydrogels are made from natural or synthetic polymers and, currently, they have many biomedical applications. In this work, the conditions for obtaining a hydrogel with similar physicochemical characteristics to the vitreous humor were defined using polyvinyl alcohol (PVA) and glutaraldehyde (GLUT) as cross-linker. The concentration of PVA and GLUT were modified, and their effect was analyzed in terms of the refractive index, density, and dynamic viscosity. The hydrogel which was obtained using 3.98% (w/V) of PVA, 3.13 mL (1.57 g) of GLUT in 100 mL, and the initial pH of 7.2 showed similar characteristics to the vitreous humor (density = 1.0174 ± 0.0050 g mL −1 , dynamic viscosity = 3.7425 ± 0.1800 mPa s and refractive index = 1.3410 ± 0.0010). The hydrogels were further investigated by rheological measurements, infrared spectroscopy, differential scanning calorimetry, X-ray diffraction and determination of swelling degree. The reticulation with GLUT promoted an increase in viscosity and glass transition temperature. On the other hand, it stimulated a decrease in the swelling degree, crystallinity, melting temperature, and intensity of the band related to the -OH bond, compared with the PVA without reticulation. The reticulated hydrogel displayed Newtonian behavior and a higher apparent viscosity than the PVA. © 2017 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 106B: 1558–1566, 2018.
dc.description.firstpage1558
dc.description.issuenumber4
dc.description.lastpage1566
dc.description.volume106
dc.identifier.citationGIANNETTI, Andreia de Araujo Morandim; RUBIO, SAMANTHA REGINA; NOGUEIRA, REGINA FREITAS; ORTEGA, FERNANDO DOS SANTOS; MAGALHÃES JUNIOR, OCTAVIANO; SCHOR, PAULO; BERSANETTI, PATRÍCIA ALESSANDRA. Characterization of PVA/glutaraldehyde hydrogels obtained using Central Composite Rotatable Design (CCRD). JOURNAL OF BIOMEDICAL MATERIALS RESEARCH PART B-APPLIED BIOMATERIALS, v. 106B, p. 1558-1566, 2018.
dc.identifier.doi10.1002/jbm.b.33958
dc.identifier.issn1552-4981
dc.identifier.urihttps://repositorio.fei.edu.br/handle/FEI/1712
dc.relation.ispartofJournal of Biomedical Materials Research - Part B Applied Biomaterials
dc.rightsAcesso Restrito
dc.subject.otherlanguagedesign of experiments
dc.subject.otherlanguageglutaraldehyde
dc.subject.otherlanguagehydrogel
dc.subject.otherlanguagePVA
dc.subject.otherlanguagevitreous humor
dc.titleCharacterization of PVA/glutaraldehyde hydrogels obtained using Central Composite Rotatable Design (CCRD)
dc.typeArtigo
fei.scopus.citations24
fei.scopus.eid2-s2.0-85026468064
fei.scopus.subjectBiomedical applications
fei.scopus.subjectCentral composite rotatable design
fei.scopus.subjectDynamic viscosities
fei.scopus.subjectGlutaraldehydes
fei.scopus.subjectPhysicochemical characteristics
fei.scopus.subjectPoly (vinyl alcohol) (PVA)
fei.scopus.subjectRheological measurements
fei.scopus.subjectVitreous humor
fei.scopus.subjectCalorimetry, Differential Scanning
fei.scopus.subjectGlutaral
fei.scopus.subjectMaterials Testing
fei.scopus.subjectPolyvinyl Alcohol
fei.scopus.subjectViscosity
fei.scopus.subjectX-Ray Diffraction
fei.scopus.updated2024-03-04
fei.scopus.urlhttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85026468064&origin=inward
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